var nickk="";
  console.log('a user connected');
  socket.emit('username');
  socket.on('username', function(nafn){
	nickk=nafn;
	console.log(nickk);
	io.emit('connected', nafn);
  });

  socket.on('disconnect', function(){
	console.log(nickk + ' disconnected');
	io.emit('disconnected', nickk);
  });